/**
 * Software License, Version 1.0
 * 
 * Copyright 2003 The Trustees of Indiana University.  All rights reserved.
 * 
 *
 *Redistribution and use in source and binary forms, with or without 
 *modification, are permitted provided that the following conditions are met:
 *
 *1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license;
 *2) All redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the disclaimer listed in this license in
 * the documentation and/or other materials provided with the distribution;
 *3) Any documentation included with all redistributions must include the 
 * following acknowledgement:
 *
 *"This product includes software developed by the Community Grids Lab. For 
 * further information contact the Community Grids Lab at 
 * http://communitygrids.iu.edu/."
 *
 * Alternatively, this acknowledgement may appear in the software itself, and 
 * wherever such third-party acknowledgments normally appear.
 * 
 *4) The name Indiana University or Community Grids Lab or NaradaBrokering, 
 * shall not be used to endorse or promote products derived from this software 
 * without prior written permission from Indiana University.  For written 
 * permission, please contact the Advanced Research and Technology Institute 
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202.
 *5) Products derived from this software may not be called NaradaBrokering, 
 * nor may Indiana University or Community Grids Lab or NaradaBrokering appear
 * in their name, without prior written permission of ARTI.
 * 
 *
 * Indiana University provides no reassurances that the source code provided 
 * does not infringe the patent or any other intellectual property rights of 
 * any other entity.  Indiana University disclaims any liability to any 
 * recipient for claims brought by any other entity based on infringement of 
 * intellectual property rights or otherwise.  
 *
 *LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO 
 *WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 *NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF 
 *INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS. 
 *INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS", 
 *"VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.  
 *LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR 
 *ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION 
 *GENERATED USING SOFTWARE.
 */
package cgl.narada.service.reliable.events;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

import cgl.narada.event.NBEvent;

/** This is the retransmitted event issued by the publisher in response to a
    retransmission request initiated by the reliable delivery service.

    @author Shrideep Pallickara
    $Date$
    $Revision$
*/


public class RdRepublishedEntityEvent {

  private int templateId;
  private int catenationNumber;
  private int previousCatenationNumber;

  private NBEvent nbEvent;
  private RdCompanionEntityEvent companionEvent;
  private String moduleName = "RdRepublishedEntityEvent: ";

  public RdRepublishedEntityEvent(NBEvent nbEvent, 
				  RdCompanionEntityEvent companionEvent) {
    this.nbEvent = nbEvent;
    this.companionEvent = companionEvent;
  }

  
  public NBEvent getPublishedEvent() {
    return nbEvent;
  }
  
  public RdCompanionEntityEvent getCompanionEvent() {
    return companionEvent;
  }

  public RdRepublishedEntityEvent(byte[] marshalledBytes) {
     ByteArrayInputStream baInputStream = 
      new ByteArrayInputStream(marshalledBytes);
    DataInputStream din = new DataInputStream(baInputStream);

    try {
      din.readByte(); /**ReliableDeliveryExchange.REPUBLISHED_ENTITY_EVENT */
      byte[] nbEventBytes = new byte[din.readInt()];
      din.readFully(nbEventBytes);
      nbEvent = 
	cgl.narada.event.impl.NBEventGenerator.unmarshallEvent(nbEventBytes);
      

      byte[] campanionBytes = new byte[din.readInt()];
      din.readFully(campanionBytes);
      companionEvent = new RdCompanionEntityEvent(campanionBytes);
      
    } catch (IOException ioe) {
      System.out.println(moduleName + "Error while un-marshalling");
    }

  }


  public byte[] getBytes() {
    ByteArrayOutputStream baOutputStream = new ByteArrayOutputStream();
    DataOutputStream dout = new DataOutputStream(baOutputStream);
    byte[] marshalledBytes= null;
    try {
      dout.writeByte(ReliableDeliveryExchange.REPUBLISHED_ENTITY_EVENT);
      
      byte[] nbEventBytes = nbEvent.getBytes();
      dout.writeInt(nbEventBytes.length);
      dout.write(nbEventBytes);
      
      byte[] companionBytes = companionEvent.getBytes();
      dout.writeInt(companionBytes.length);
      dout.write(companionBytes);

      dout.flush();
      marshalledBytes = baOutputStream.toByteArray();
    } catch (IOException ioe) {
      System.out.println(moduleName + "Error while marshalling");
    } /** end try-catch block*/
    
    return marshalledBytes;
  }

}


